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This results in a further great reduction in the heat loss occuring during operation of the soft starter at rated value. In addition, neither static systems for reactive-power compensation nor dynamic PFC Power Factor Correction must be operated in parallel during starting and ramp-down of the soft starter.

Three LEDs are used to indicate the operating state as well as possible errors, e. Calculate soft starter and motor with size allowance 3rw4056-6bb444 required. Your message has been sent. S2 S3 Terminal covers for cable lugs and busbar connections For complying with the phase clearances and as touch protection if box terminal is removed 2 units required per contactor 3RW30 4.

Please visit our website to find instruments which can be calibrated. Control supply voltage [A] 0. The reason for this is that the auxiliary switch blocks and solenoid protective circuitry are located within the envelope contours of the contactors.


3rwbb44 manual(PDF) –

Installed in starters delivered after May If the ramp-down function “DC braking” is selected, a braking contactor must be used mznual addition see table for type. Due to two-phase control, the current is kept at minimum values in all three phases throughout the entire starting time. The new torque control and adjustable current limiting enable the High-Feature soft starters to be used in nearly every conceivable task.


In the event of manula conditions or increased switching frequency, it may be necessary to choose a larger device. Conductor cross-sections Auxiliary conductors 1 or 2 conductors can be connected: Only soft starting available for 3RW Products The range of this service include, but not 3rw4506-6bb44 to: Degree of noise suppression A industrial applications Siemens Industry, Inc.

Siemens Sirius 3RW40 – 90kW Soft Start with V controls – Soft Starters

With size S00 and S0 contactors, the auxiliary switches are already integrated in the enclosure. All elements of the main circuit such as fuses and controls should be dimensioned for direct starting, following the local short-circuit conditions.

No track and mahual will be send to the client. For safety reasons we recommend incorporating the group error output terminals 95 and 96 in the controller. Version Functionality Functions Order No.

Integrated bypass contacts mean that minimal power is used at the power semiconductors thyristors after the motor has started maanual. This cuts down on heat losses, enabling a more compact design and making external bypass circuits superfluous. If necessary, Type higher values for the rated operational voltage or current must be calculated accordingly for the soft starter.

Siemens SIRIUS Modular System

For corresponding device versions with integrated thermistor motor protection or separate thermistor evaluation devices see Catalog LV 1. Thermal overloading of the bypass contacts Manual 1 Bypass 3rw4056-6hb44 functions Trips in the event of Reset option after tripping Recovery time Siemens Industry, Inc.


The 3RW30 soft starters are suitable for soft starting of threephase asynchronous motors. Integrated bypass contacts mean that minimal power loss is used at the power semiconductors thyristors after the motor has 3ra4056-6bb44 up.

E-invoicing Reduce paperwork and access all invoices in one place using My Account. They reliably mitagate the sudden torque applications and current peaks during motor starting and stopping.

As infeed and load feeder breaker, they protect plants and motors against short circuit and overload. It leaves the set start ramp during the ramp-up — 3tw4056-6bb44 ramp gradient is fixed by the starting voltage and the ramp time — as soon as the selected current limit is reached.

A description model and identification eg. The measured values detected by the calibration Calibration in a controlled environment measuring laboratory. A bypass contact system and solid-state overload relay are already integrated in the 3RW44 soft starter and therefore do not have to be ordered separately. The measurement error is documented manusl a calibration certificate, which serves as proof. For fuse and switching device coordination, see “Technical specifications”.